1、 Blade difference

The leaf sheath of Festuca arundinacea is longer than the internodes, the leaf tongue is membranous, the culm leaves are narrow linear, about 1-3cm long, usually curled in, the top is acuminate and spiny, the lower part is gradually narrow, with white powder and pilose at the base. The leaf sheath and tongue of reed are similar. The leaves of the former are lanceolate linear, and the top is long and gradually pointed, which is filiform and hairless

2、 The difference between flowers

Festuca arundinacea is a panicle, about 20 cm long, 3 cm wide, and the spikelet is about 4.5-5 mm long. The reed is also a panicle, which is larger than the former, with a length of about 20-40 cm, a width of about 10 cm and a spikelet of about 12 mm

3、 Shape difference

Festuca arundinacea is a perennial herb with strong long rhizome, upright stalk, about 30-80 cm, and 1-3 nodes. The rhizome of reed is more developed and higher than the former, about 1-3 meters, with more than 20 nodes